Coretronic Corporation

Chih-Hui Chang

Fu-Shun Kao

Chun-Hsien Wu

Jung-Chi Chen

Sheng-Yu Chiu

Jih-Ching Chang

Kuei-Ju Weng

Yu-Chang Chang

A focusing module includes a focusing ring and a projection lens mounting ring. The focusing ring has a first ring body and a first annular wall with a limiting hole. The projection lens mounting ring has a second annular wall which can rotate relative to the first annular wall along a circumferential direction of the first annular wall. The second annular wall has a through hole and a rotation buffer structure having a limiting portion and a cantilever portion. The limiting portion has a center surrounded by the hole edge and protruding toward the first annular wall. The center has first side and second side. A thickness of the limiting portion decreases from the center toward the first and second side. The center is in the limiting hole and the first annular wall is pressed against the first and second side when the limiting portion contacts against the limiting hole.

Focusing module and projection apparatus

A projector, including a body, a light source, a light valve, a projection lens, and a lens adjustment module, is provided. The light source and the light valve are disposed in the body, and the projection lens is movably disposed on the body. The lens adjustment module includes a driven structure connected to the projection lens, a guiding member and a rotating member connected to the guiding member. The guiding member is disposed on the body to be rotatable along an axis of rotation and has a closed ring guiding rail. The driven structure is slidably disposed at the closed ring guiding rail and is configured to move relative to the guiding member along a closed ring path defined by the closed ring guiding rail. A normal direction of a surface where the closed ring path is located is not parallel to the axis of rotation.

Projector and lens adjustment module

A projector includes an optical engine module, a projection lens module, a heat dissipation module, and a laser module. The laser module includes a positioning member and a laser unit fixed to the positioning member, wherein a positioning member includes a main plate portion and two shoulder portions, the main plate portion includes a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main plate portion, respectively. A laser module is also provided.

Projector and laser module thereof

The invention provides a projection system and a light-homogenizing device adjustment element for adjusting the position of a light-homogenizing device. The light-homogenizing device adjustment element has an actuator, and the actuator leans against one side of the light-homogenizing device and has a plurality of curved surfaces with different radii of curvature. When the actuator rotates, different curved surfaces push the light-homogenizing device to cause the light-homogenizing device to move in at least one direction from an initial position.

Projection system and light-homogenizing device adjustment element

A lamp position adjustment device includes a base plate, a supporting frame, a lamp holder, a first positioning mechanism, and a second positioning mechanism. The first positioning mechanism is disposed between the lamp holder and the supporting frame and between the lamp holder and the base plate to enable the lamp holder to move in a first direction relative to the supporting frame. The first direction is substantially parallel with one side of a light incident surface of an integration rod. The second positioning mechanism is disposed between the lamp holder and the base plate to enable the lamp holder to rotate about an axis parallel to the first direction.

Growing community of inventors

Hsin-Chu, Taiwan

Chih-Hui Chang